Effects of commonly prescribed nonsteroidal anti-inflammatory drugs on thyroid hormone measurements
Author links open overlay panelAlkaBishnoiM.D.abKennethLidonniciM.D.c
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doi.org/10.1016/0002-9343(9...
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Abstract
purpose: To assess the effects of nonsteroidal anti-inflammatory drugs (NSAIDs) on thyroid function tests.
patients and methods: Eighty-nine patients receiving NSAIDs and 22 control subjects not taking NSAIDs were studied in a cross-sectional survey at Veterans Affairs and University hospitals. Measurements of serum thyroxine (T4), free T4 index, triiodothyronine (T3), and thyrotropin (thyroid-stimulating hormone [TSH]) were obtained for all subjects.
results: Serum T4 measurements were lowered only in salsalate-treated patients, while serum T3 was depressed in patients receiving salsalate, diclofenac sodium, and naproxen. Serum T4 and T3 were unchanged in patients treated with diflunisal, ibuprofen, indomethacin, piroxicam, or sulindac. Serum TSH was normal in all subjects.
conclusions: Several NSAIDs can lower serum thyroid hormone concentrations, principally by interfering with the binding of T4 and T3 to serum carrier proteins; patients taking these drugs remain euthyroid. Awareness of these interactions may prevent unnecessary diagnostic or therapeutic interventions.
I was looking up thyroidectomy and arthritis and came across this science article above, I found it interesting. I do take at least one Advil or Advil Dual Action everyday and on bad days at least 2 maybe 3 a day. I wonder if this could be the reason why NO MATTER what thyroid meds Im on my TSH and the rest of my labs are always scraping the bottom of the ranges 🤷♀️.